<template>
  <div class="app-container">
    <div class="el-toolbar">
      <div class="el-toolbar-body" style="justify-content: flex-start">
        <!-- 数据字典导入 -->
        <el-button type="text" @click="exportData"
          ><i class="fa fa-plus" /> 导出</el-button
        >
        <!-- 数据字典导出 -->
        <el-button type="text" @click="importData"
          ><i class="fa fa-plus" /> 导入</el-button
        >
      </div>
    </div>
    <!-- 数据字典显示 -->
    <el-table
      :data="list"
      style="width: 100%"
      row-key="id"
      border
      lazy
      :load="getChildrens"
      :tree-props="{ children: 'children', hasChildren: 'hasChildren' }"
    >
      <el-table-column label="名称" width="230" align="left">
        <template slot-scope="scope">
          <span>{{ scope.row.name }}</span>
        </template>
      </el-table-column>

      <el-table-column label="编码" width="220">
        <template slot-scope="{ row }">
          {{ row.dictCode }}
        </template></el-table-column
      >
      <el-table-column label="值" width="230" align="left">
        <template slot-scope="scope">
          <span>{{ scope.row.value }}</span>
        </template></el-table-column
      >
      <el-table-column label="创建时间" align="center">
        <template slot-scope="scope">
          <span>{{ scope.row.createTime }}</span>
        </template></el-table-column
      ></el-table
    >
    <!-- 数据字典导出弹出层 -->
    <el-dialog title="导入" :visible.sync="dialogImportVisible" width="480px">
            <el-form label-position="right" label-width="170px">

            <el-form-item label="文件">

            <el-upload
            :multiple="false"
            :on-success="onUploadSuccess"
            :action="'http://localhost:8202/admin/dict/import/data'"
            class="upload-demo">
            <el-button size="small" type="primary">点击上传</el-button>
            <div slot="tip" class="el-upload__tip">只能上传excel文件，且不超过500kb</div>
            </el-upload>

            </el-form-item>

            </el-form>
            <div slot="footer" class="dialog-footer">
            <el-button @click="dialogImportVisible = false">
                取消
            </el-button>
            </div>
        </el-dialog>
  </div>
</template>
<script>
import dict from "@/api/dict";
export default {
  data() {
    return {
      list: [],
      //弹出层在初始化时是否显示
      dialogImportVisible: false,
    };
  },
  created() {
    //在页面渲染之前执行
    this.getDictList();
  },
  methods: {
    //一、初步获取所有分类的根节点
    getDictList() {
      dict.getDictList(1).then((response) => {
        this.list = response.data;
      });
    },

    //二、加载子节点数据
    getChildrens(tree, treeNode, resolve) {
      //将当前项的父节点传入
      dict.getDictList(tree.id).then((response) => {
        //将数据赋予
        resolve(response.data);
        //实际根据hasChildren项来展示
      });
    },

    //三、触发导出数据
    exportData() {
      window.location.href = "http://localhost:8202/admin/dict/export/data";
    },

    //四、触发导入数据
    importData() {
      //显示弹出层
      this.dialogImportVisible = true;
    },

    //五、导入成功后操作
    onUploadSuccess() {
      alert("hahah");
      //提示导入成功
      this.$message.info("上传成功");
      //关闭弹出层
      this.dialogImportVisible = false;
      //刷新当前页面的数据
      this.getDictList();
    },
    // onUploadSuccess(response, file) {
    //   alert("HAHA")
    //   this.$message.info("上传成功");
    //   this.dialogImportVisible = false;
    //   this.fetchData();
    // },
  },
};
</script>